Window.on("resize"); should be configurable

[ckosmowski]

It should be configurable if the grid will attach a window.on("resize") event itsself or not. In our application for example there is one centralized window.on("resize") event which delegates all the work that needs to be done.

This is because the window.resize() can be expensive. And in some situation especially with jquery.ui resize functions used it can be triggered even if the window has not been resized.

[ckosmowski]

With #111 i proposed a solution that prevents all the problems i had with this.